kernel: soft-lockups in iov_iter_copy_from_user_atomic() could result in DoS

A flaw was found in the Linux kernel’s implementation of biovecs. A zero-length biovec request issued by the block subsystem could cause the kernel to enter an infinite loop, causing a denial of service. This flaw allows a local attacker with basic privileges to issue requests to a block device,...

kernel: soft-lockups in iov_iter_copy_from_user_atomic() could result in DoS

A flaw was found in the Linux kernel’s implementation of biovecs. A zero-length biovec request issued by the block subsystem could cause the kernel to enter an infinite loop, causing a denial of service. This flaw allows a local attacker with basic privileges to issue requests to a block device,...

USN-4576-1 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities

Hadar Manor discovered that the DCCP protocol implementation in the Linux kernel improperly handled socket reuse, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2020-16119 Jay Shin...

A flaw was found in the Linux kernel's implementation of biovecs in versions before 5.9-rc7. A zero-length biovec request issued by the block subsystem could cause the kernel to enter an infinite loop causing a denial of service. This flaw allows a local attacker with basic privileges to issue requests to a block device resulting in a denial of service. The highest threat from this vulnerability is to system availability.

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DEBIAN-CVE-2020-25641

A flaw was found in the Linux kernel's implementation of biovecs in versions before 5.9-rc7. A zero-length biovec request issued by the block subsystem could cause the kernel to enter an infinite loop, causing a denial of service. This flaw allows a local attacker with basic privileges to issue...

UBUNTU-CVE-2020-25641

A flaw was found in the Linux kernel's implementation of biovecs in versions before 5.9-rc7. A zero-length biovec request issued by the block subsystem could cause the kernel to enter an infinite loop, causing a denial of service. This flaw allows a local attacker with basic privileges to issue...

Security Bulletin: Security vulnerabilities in OpenSSH and OpenSSL shipped with IBM Security Access Manager Appliance (CVE-2018-15473, CVE-2019-1559)

Summary The OpenSSH and OpenSSL packages are shipped with IBM Security Access Manager Appliances. These vulnerabilities have been fixed. Vulnerability Details CVEID: CVE-2018-15473 DESCRIPTION: OpenSSH could allow a remote attacker to obtain sensitive information, caused by different responses to...

Linux kernel Zero Length Bvec Code Issue Vulnerability

Linux kernel is the kernel used by Linux, the open source operating system released by the Linux Foundation in the United States. A security vulnerability exists in Linux kernel Zero Length Bvec, which arises from improper design or implementation during code development for a networked system or...

Denial Of Service (DoS)

mutt:trusty is vulnerable to denial of service DoS. pop.c mishandles a zero-length UID...

GLSA-202009-02 : Dovecot: Multiple vulnerabilities

The remote host is affected by the vulnerability described in GLSA-202009-02 Dovecot: Multiple vulnerabilities It was discovered that Dovecot incorrectly handled deeply nested MIME parts, incorrectly handled memory when using NTLM, and incorrectly handled zero-length messages. Impact : A remote...

PT-2020-5105 · Linux +7 · Linux Kernel +7

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 5.9-rc7 Description: The issue is related to a flaw in the Linux kernel's implementation of biovecs, which can cause the kernel to enter an infinite loop when a zero-length biovec request is issued by the block...

USN-4456-2 dovecot vulnerabilities

USN-4456-1 fixed several vulnerabilities in Dovecot. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: It was discovered that Dovecot incorrectly handled deeply nested MIME parts. A remote attacker could possibly use this issue to cause Dovecot to...

ALPINE-CVE-2020-12674

In Dovecot before 2.3.11.3, sending a specially formatted RPA request will crash the auth service because a length of zero is mishandled...

DEBIAN-CVE-2020-12674

In Dovecot before 2.3.11.3, sending a specially formatted RPA request will crash the auth service because a length of zero is mishandled...

USN-4456-1 dovecot vulnerabilities

It was discovered that Dovecot incorrectly handled deeply nested MIME parts. A remote attacker could possibly use this issue to cause Dovecot to consume resources, resulting in a denial of service. CVE-2020-12100 It was discovered that Dovecot incorrectly handled memory when using NTLM. A remote...

UBUNTU-CVE-2020-12674

In Dovecot before 2.3.11.3, sending a specially formatted RPA request will crash the auth service because a length of zero is mishandled...

EulerOS 2.0 SP3 : systemd (EulerOS-SA-2020-1436)

According to the version of the systemd packages installed, the EulerOS installation on the remote host is affected by the following vulnerability : - The managerinvokenotifymessage function in systemd 231 and earlier allows local users to cause a denial of service assertion failure and PID 1 han...

HTTP/2: 0-length headers lead to denial of service

A flaw was found in HTTP/2. An attacker, sending a stream of header with a 0-length header name and a 0-length header value, could cause some implementations to allocate memory for these headers and keep the allocations alive until the session dies. The can consume excess memory, potentially...

HTTP/2: 0-length headers lead to denial of service

A flaw was found in HTTP/2. An attacker, sending a stream of header with a 0-length header name and a 0-length header value, could cause some implementations to allocate memory for these headers and keep the allocations alive until the session dies. The can consume excess memory, potentially...

HTTP/2: 0-length headers lead to denial of service

A flaw was found in HTTP/2. An attacker, sending a stream of header with a 0-length header name and a 0-length header value, could cause some implementations to allocate memory for these headers and keep the allocations alive until the session dies. The can consume excess memory, potentially...